1. Due to the complex nature of the experiment,
interviewing more subjects would provide a larger variety of responses.

2. Because gestures had to be recorded
while looking down at the chart, some gestures may have been missed. It
might have helped to have one person asking the questions while another
observed from afar, recording gestures as they occur.

3. The mood of the subjects and the atmosphere
of the interview may have had various effects on each subject.